Evaluation of Multi-Rate Transmission Schemes based on Contiguous and Non-Contiguous Subcarrier Allocation
| Research Area: | Volume 2 Issue 6, Nov. 2013 | Year: | 2013 |
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| Type of Publication: | Article | Keywords: | CI o rMC-CDMA, HDR, LDR, Multicarrier, Multirate, VHDR |
| Authors: |
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| Journal: | IJEIR | Volume: | 2 |
| Number: | 6 | Pages: | 558-563 |
| Month: | November | ||
| Abstract: | In this paper, two multirate transmission schemes have been proposed for carrier interferometry multicarrier code division multiple access (CI/MC-CDMA) system. System models for wide range of data rates are discussed based on orthogonal property of CI codes of any length. Non-contiguous CI codes have been introduced for multirate CI/MC-CDMA. Advantage of frequency diversity in non-contiguous allocation improves the performance of variable rate system over frequency selective channel. It is shown that non-contiguous allocation allows more number of very high data rate users compared to contiguous allocation with some increased complexity at iterative receiver. |
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Full text:
 IJEIR_767_Final.pdf | |||
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